<?php
function GetIP(){

if(!empty($_SERVER["HTTP_CLIENT_IP"]))
	$cip = $_SERVER["HTTP_CLIENT_IP"];
else if(!empty($_SERVER["HTTP_X_FORWARDED_FOR"]))
	$cip = $_SERVER["HTTP_X_FORWARDED_FOR"];
else if(!empty($_SERVER["REMOTE_ADDR"]))
	$cip = $_SERVER["REMOTE_ADDR"];
else
	$cip = "0.0.0.0";
return $cip;
}

$GetIPs = GetIP();
echo $GetIPs;

if ($GetIPs=="1.1.1.1"){
	  
echo "Great! Key is *********";
}
else{
echo "错误！你的IP不在访问列表之内！";
}
?>